Routing the CLI's writes through `file_access` changed what happens when the
output path is a symbolic link. `file_access::write` stages the bytes and
renames them into place, and a rename replaces the link with a regular file,
where `std::fs::write` followed it and wrote to its target. A render to a link
reported success while the target kept its old contents.
Unconfined writes go back to `std::fs::write`. Confined ones keep the staged
write, which is right there: `Roots::check` resolves the path first and has
already refused a link leading out of the root, so the write lands on the
resolved target inside it.
`figcraft-cli mcp` takes `--automation-read-root` / `--automation-write-root`
to confine the files an agent's commands touch, but the file subcommands took
neither: `figcraft-cli run script.json --out /anywhere/x.figcraft` read and
wrote as the user who started it. The README invites agent use, and a script
or agent driving `run`, `export` or `convert` had no way to say which folders
it may reach (#833).
`info`, `export`, `convert`, `render` and `run` take the same two flags, with
the same semantics: repeatable, the folders must exist, reads inside a read or
write root, writes only inside a write root, everything else refused -- so
giving no write root denies writing altogether. Without the flags they behave
as before.
The flags would have been decorative on their own: `figcraft_engine` enforces
roots through `file_access`, which the engine's own loads already go through,
but the CLI wrote its output with `std::fs` and read its script the same way.
Those three calls now go through `file_access` too, so the confinement reaches
the files the CLI itself touches.
Text in a family that isn't installed was drawn in a fallback font
without a word. Now:
- `text.missingFonts` lists the families a document names that no
installed or built-in font provides: text layers and their styled
ranges, text styles, and string variables bound to a font family
(every mode, through aliases), with the number of text layers.
- The desktop app shows a Missing fonts window after the user opens a
file that has any: once installed fonts are indexed (before that every
one of them would count as missing) and after any import report is
closed. Files named on the command line count. Programmatic opens and
the browser build never open it by themselves. Text > Missing fonts...
shows it for the file in front; Escape closes it.
- `figcraft-cli info` prints `missing font` lines (`missingFonts` with
--json).
- file-format-parity: the row claimed REST import warnings that no code
produced.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
- `figcraft-cli mcp --automation-read-root DIR --automation-write-root DIR` (each repeatable, `--flag=DIR` works too). When either is given, every file an agent's tool call reads must lie inside a read root or a write root, and every file it writes inside a write root. Anything else is an ordinary tool error (`automation path rejected: … is outside the folders that may be written: …`); nothing is written and the server keeps serving. Without the flags nothing changes.
- The desktop app takes the same flags (`figcraft --control PORT --automation-read-root DIR …`) and confines every control request and every frame of every window to them, so `figcraft-cli mcp --attach` drives a confined app. `--attach` together with the flags is a usage error, because the app runs the commands and only the app can confine them.
- New engine module `crates/engine/src/file_access.rs`: `Roots` (resolution and comparison), a thread-scoped `confined(roots, f)`, and the file primitives (`read`, `read_capped`, `open`, `metadata`, `read_dir`, `write` (atomic), `create_dir_all`, `exists`, `is_dir`). Every engine file access now goes through it. `crates/engine/clippy.toml` denies `std::fs::*`, `File::open/create`, `OpenOptions::open`, `Path::exists/is_file/is_dir/metadata/read_dir/canonicalize` and `figcraft_format::{write_file_atomic, save_file, load_file}` everywhere else in the engine, so a command added later is confined without a check of its own.
- `ui.screenshot` and `ui.render` return the PNG as base64 `data` when no `path` is given (before, `ui.screenshot` wrote `figcraft-screenshot.png` in the working directory and `ui.render` required a path). The attached MCP backend uses that, so it no longer writes and deletes temporary PNGs, and a confined app needs no exemption for them.
- `initialize`'s `instructions` name the folders the agent may read and write.
- `figcraft-cli` options may be given more than once (`Args::values`); single-valued options keep the last value, as before.
- Docs: `docs/mcp.md` › Confining file access (options, semantics, coverage, resolution, limits), `docs/control-protocol.md` › Confining file access and the optional `path` of `ui.screenshot` / `ui.render`, `docs/cli.md`, `figcraft-cli --help`, and the Automation line plus a revision row in `docs/target-app-parity.md`.
Fixes#715, fixes#481.
`{"type":"linearGradient","stops":["#hex",…]}` was only expanded by the MCP
tools, so `figcraft-cli run` and the control channel's `engine.execute`
refused it ("`fills` must be paints or colours"). The expansion now lives in
the engine (`params::normalize_paint`, used by `paint_of`), so node.set,
node.create props, fill.add/set, strokes and paint styles all take it; MCP
calls the engine's copy instead of its own.
Tests: engine (every paint command, MCP-equal defaults, junk still refused),
control channel `engine.execute`, and `figcraft-cli run` end to end.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
SVG and PDF exports check the visible subtree's depth before bounds or drawing and refuse, with an actionable message, a document nested past 256 levels instead of silently leaving the deep layers out; nothing partial is written, and an inner layer can still be exported. The CLI and MCP report the same error. Fixes#208.
Also: on Windows, figcraft and figcraft-cli link with an 8 MB main-thread stack (Windows gives 1 MB where Linux and macOS give 8), so an export at the depth limit no longer overflows it.
Co-authored-by: bflatastic <bflatastic@users.noreply.github.com>
Headless runs (`figcraft-cli export`, `render`, `convert`, `run`, and the headless MCP server) never indexed the installed fonts, so a text layer in an installed family (Segoe UI, Inter installed per user, ...) was measured and drawn with a fallback face, while the desktop app used the real one. Auto layout sizes from MCP agents therefore differed from what users see in the app.
- `figcraft_text::scan_system_fonts_on_demand()`: the font database indexes the system fonts the first time it is used (first text layout, font lookup or font listing). `figcraft-cli` turns it on at startup for every subcommand, so a run that touches no text never pays for the scan. The desktop app keeps its background scan.
- `scan_system_fonts()` now runs once per process (a `OnceLock`): racing callers wait for the one directory walk instead of each walking the folders.
- Opt-out for reproducible renders: `--no-system-fonts` on any subcommand, or `FIGCRAFT_NO_SYSTEM_FONTS=1` (honoured by the desktop app too). Text then uses only the built-in fonts, as before.
- The scan is cheaper: it reads each file's headers, table directories and `name` tables instead of whole files (about 460 MB on this Windows machine), and takes file metadata from the directory listing instead of a lookup per file. This also speeds up the desktop app's background scan.
- Browser/wasm build unchanged (the scan is a no-op there).
- Docs: `docs/cli.md` (new Fonts section) and `docs/mcp.md` (Fonts under the backends table); CLI usage text mentions the flag.
PDF export gains print options, saved on PDF export settings and taken
by file.export, file.exportLayers, file.exportFramesPdf, export.add /
export.update, figcraft-cli export and the MCP export tool:
- a bleed (points or a length like 3mm / 0.125in, up to 2 in) that grows
each page and shows what lies past the frame: its fills reach out to
the bleed edge and its children are clipped there instead; a print
page of one frame is trimmed to the frame's box;
- crop and bleed marks: 0.25 pt hairlines outside the bleed in
registration colour;
- MediaBox / BleedBox / TrimBox;
- CMYK colour: fills, strokes, text, gradient stops, images and
rasterised effects converted from sRGB with the naive, deterministic
K = 1 - max(R, G, B) formula; DeviceCMYK without an output intent (no
CMYK ICC profile can ship in the repository), soft masks stay RGB.
The Design panel shows a PDF row's print settings as a summary line that
opens them; the Export dialog has print options for its PDF preset.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
PDF export
- Vector masks clip to the mask's outline, luminance masks are luminosity
soft masks (alpha masks as before).
- Background blur: the backdrop the page draws under the layer is rendered,
blurred and cut to its shape, under the layer's vector content.
- Text hyperlinks become clickable link annotations (one per line and link).
- Frames-to-PDF shares one path (`frames_pdf`): sRGB conversion for Display
P3 files, hidden frames left out, the file name as the PDF title.
- `figcraft-cli export -o x.pdf` and `convert x.figcraft x.pdf` write the
page's frames one PDF page each.
- Tests: mask types, backdrops, links, image deduplication, page sizes in
points, hostile inputs; CLI end to end. Checked by rendering the PDFs back
to PNG and diffing against the PNG export.
Prototyping
- Model: conditional actions (if / else if / else blocks), set variable mode,
and expressions (literals, variable references, + - * /, comparisons,
and/or/not, negate) for set-variable values and conditions; walk helpers
for nested actions (remap on paste, colours, destination checks, library
copies and pruning, canvas connections).
- REST import maps CONDITIONAL, SET_VARIABLE_MODE and SET_VARIABLE with
variable references and EXPRESSION values; unsupported functions (mode
lookups) skip the action with a warning.
- The presenter runs them in order (`figcraft_engine::proto_run`); the
Prototype panel summarises conditionals, edits set-variable-mode, and
`ui.set {protoEditor}` opens an interaction's editor.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Hamza